Stockholders' Equity Exchangeable Shares and Conversion Rights (Details)	12 Months Ended
Dec. 31, 2019 shares votes
Class B Exchangeable Shares
Class of Stock [Line Items]
Common stock, votes per share	1
Exchangeable shares issued, Class A
Class of Stock [Line Items]
Common stock, votes per share	1
Common stock, conversion ratio \| shares	1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_ClassOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration